In a testy Senate education committee hearing Tuesday, Sen. Lamar Alexander, R-Tenn., told Secretary of Education John B. King Jr. that he believed the U.S. Department of Education was not following the Every Student Succeeds Act.

The new law includes a host of new transparency requirements that will give the feds, states, districts, educators, advocates and (yes) education reporters a much clearer picture of how different populations of kids are doing.